Watchcase.



C. L. DEPOLLIER.

WATCHCASE.

APPLICATION FILED AUG.21. 1918.

1,292,443. Patented Jan. 28,1919.

WITNESS INVENTOR CHARLES L. DEBOLLIER, OI BROOKLYN, NEW YORK.

w'AToHoAsn.

Specification of Letters Patent.

Patented Jan. 28, 1919.

Application filed August 21, 1918. Serial No. 250,772.

To all whom it may concern."

Be it known that 1, CHARLES L. DEPOLLIER, a citizen of the United States, residing in the borough of Brooklyn of the city of New York, in the State of New York, have invented certain new and useful Improvements in Watchcases, of which the follow ing-is a specification, reference being had to the accompanying drawing, forming a part hereof.

In the further development of the improvement in watch cases shown and described in Letters Patent of the United States #1268521 dated June 11, ,1918, and having for its object the production of a watch case which shall be capable, during a long period of time, of preventing effectually the entrance of water between the members of the case, it has been found that the purpose of the invention may perhaps be better attained in some instances by a modification of the structure shown in such Letters Patent. In the construction shown in such Letters Patent there is not only provided a packing between adjacent members of the case, such as the center and the bezel or the center and the back, but there is also formed in one or the other or in each of ads jacent members a recess for the reception of surplus saturant so that the packing may remain soft and resilient through a long period of time. It may, happen, however, that in the course of time the packing may be pressed into such recess so that the storage space is reduced and the packing itself is reduced in volume and deformed. It is the purpose of this invention to prevent the possibility of such an undesirable result, and to accomplish this purpose there is inserted in the groove which receives the packing ring a foraminous liner, preferably somewhat elastic but'not greatly compressible under the conditions of use, which maintains at all times and under all conditions a space for the reception of surplus saturant and supports the packing so that it does not encroach upon such space nor become deformed. At the same time it permits the packing to yield somewhat under pressure. The invention will be more fully explained hereinafter in reference to the accompanying drawing in which it is illustrated and in which Figure 1 is a view in front elevation of a watch, which may embody the present improvement. r

Fig. 2 is a view in elevation, on a'larger scale, of a portion of the center.

Fig. 3 is a detail view in section on the plane indicated by the line 3-3 of Fig. 1,.60 also on a larger scale.

Figs. 4 and 5 are views similar respec tively to Figs. 2 and 3 but showing another embodiment of the invention.

Figs. 6, 7 and 8 are detail views showing still another modification.

The watch illustrated in the drawing as embodying the invention is shown as having a center a, a removable screw-threaded bezel b, and a removable screw-threaded back 0. 7a In each side of the center, near its periphery so as to be covered by the outer portion of the bezel or back, the center a is formed with an annular recess or groove d. In the construction shown the proximate face of the back or center, as the case may be, is also provided with an, annular recess or groove e. A packing ring f, of any suitable material adapted to absorb and retain a suitable water-repellent saturant, is seated in the corresponding grooves and is adapted to be compressed slightly as the bezel or the back is screwed home on the center. The construction thus far described is substantially the same in all of the figures of as the drawings and is substantially the same as shown in the Letters Patent above men tioned. It may be varied to suit different conditions of use for the requirements of different manufacturers.

In one of the grooves for each packing ring f, such as the groove OZ in the center, is placed 3. liner, foraminous in character and not compressible, under the conditions of use, to any considerable extent. liner, as shown at g in Figs. 2 and 3 and at g in Figs. 4 and 5, may be made of a fine wire fabric, or, as shown in Figs. .6, 7 and 8, it may be made of a ribbon g of metal, corrugated as shown in Fig. 6, and preferably perforated as shown at g in Figs. 7 and 8.

As shown in Figs. 2 and 3, thisliner may be placed at the bottom of the groove, or, as

"shown in Figs. 4, 5, 6 and 7, it may be placed at one side of the groove. lVhether hf one material or another and whether placed at the bottom or at the side of one groove or another, it supports the packing ring when the latter is under pressure so as to resist deformation thereof, although, by reason of itsown construction and of its cooperation with the fibrous paclnng ring, it

This as v.

permits some yielding of the packing ring between the center and the-bezel or the back,

as the case may be,

I- claim as my invention:

1. A watch case having a center and a separable member, a packing ring between proximatefaces of the center and the separable member, and a 'foraminous liner to support the packing and form a space forthe reception of surplus saturant.

2. A watch case having a center and a separable member, one of said parts being formed with an' annular-groove, a packing ring seated in said groove and a foraminous liner for said groove to support the packing ring and form a space for the reception of surplus saturant.

3. A Watch case having a center and a separable member, a packing ring between proximate faces of the center and the separable member, and a foraminous, resilient liner to support the'packing and to form a space for the reception of surplus saturant.

This specification signed this th day of August, A. D. 1918. i

CHARLES L. DEBOLLIER. 

